Preprint Article Version 1 This version is not peer-reviewed

Spatial Organization of Five-Fold Morphology as a Source of Geometrical Constraint in Biology

Version 1 : Received: 28 July 2018 / Approved: 2 August 2018 / Online: 2 August 2018 (09:00:56 CEST)

A peer-reviewed article of this Preprint also exists.

López-Sauceda, J.; López-Ortega, J.; Laguna Sánchez, G.A.; Sandoval Gutiérrez, J.; Rojas Meza, A.P.; Aragón, J.L. Spatial Organization of Five-Fold Morphology as a Source of Geometrical Constraint in Biology. Entropy 2018, 20, 705. López-Sauceda, J.; López-Ortega, J.; Laguna Sánchez, G.A.; Sandoval Gutiérrez, J.; Rojas Meza, A.P.; Aragón, J.L. Spatial Organization of Five-Fold Morphology as a Source of Geometrical Constraint in Biology. Entropy 2018, 20, 705.

Journal reference: Entropy 2018, 20, 705
DOI: 10.3390/e20090705

Abstract

A basic pattern in the body plan architecture of many animals, plants and some molecular and cellular systems is five-part units. This pattern has been understood as a result of genetic blueprints in development and as a widely conserved evolutionary character. Despite some efforts, a definitive explanation of the abundance of pentagonal symmetry at so many levels of complexity is still missing. Based on both, a computational platform and a statistical spatial organization argument, we show that five-fold morphology is substantially different from other abundant symmetries like three-fold, four-fold and six-fold symmetries in terms of spatial interacting elements. We develop a measuring system to determine levels of spatial organization in 2D polygons (homogeneous or heterogeneous partition of defined areas) based in principles of regularity in a morphospace. We found that spatial organization of five-fold symmetry is statistically higher than all other symmetries studied here (three to ten-fold symmetries) in terms of spatial homogeneity. The significance of our findings is based on the statistical constancy of geometrical constraints derived from spatial organization of shapes, beyond the material or complexity level of the many different systems where pentagonal symmetry occurs.

Subject Areas

Pentagon; fivefold morphology; body plan; spatial organization; morphospace.

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